Control Strategy for Main Steam Pressure of Combustion System of Pulverized Coal Boiler

摘要：

Boiler combustion system is a complicated large delay system. The heat of the coal in steam boiler system is mainly reflected in steam flows. In this paper, a well-performed coal-fed plan is presented for the direct blow pulverized coal-fired boiler according to the conditions of fan mills. Moreover, the caloric value of coal is estimated and acts as the feedback signals of the inner loop; thus, the cascade PID control scheme is carried out for the main steam pressure control. This control strategy has been used in a power plant. The actual operation shows that the main steam pressure can be controlled within the desired scope. The system is running steadily and reliably, and good performance has been achieved.

关键词： Boiler combustion system Main steam pressure Coal blending scheme Loop control

作者: Jinjie Huang Guangming Cheng Xiaolin Chi Yujie Zhang

作者单位: Department of Automation Harbin University of Science and Technology Harbin, China

会议类型: 国际会议

会议名称: 2012 International Conference on Measurement,Information and Control(2012测量、信息与控制国际会议 ICMIC2012)

会议地点: 哈尔滨

会议语种:英文

页码: 805-808

在线出版日期: 2012-05-18（万方平台首次上网日期，不代表论文的发表时间）